I tend to think of "use your words" as a kind of defensive tactic in and of itself, and so like most defensive tactic it has its good points and bad points. On the one hand, it can totally make things explode; on the other hand, it's that sort of step that means that you've taken away one layer of potential self-justification from your opponent: they can no longer claim any ignorance about what you wanted/didn't want/said was okay.

(It's also personally something I have to do before I'm "allowed" to be too pissed off at someone/whatever - if I haven't actually SAID that X, Y or Z was a problem, I'm out of line expecting someone to read my mind, the same way I'd consider them out of line if they expected me to read mine. Ergo, if it's not a big enough deal for me to use my words about, it's not a big enough deal for me to sulk about, so to speak.)

But yeah, like all tactics, it's one I use either when it's going to work, or when I have to.